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A145519 as a simple table

n a(n)
0 1
1 2
2 7
3 19
4 54
5 134
6 354
7 838
8 2057
9 4794
10 11232
11 25412
12 58075
13 128670
14 286152
15 625829
16 1365653
17 2941088
18 6331146
19 13474533
20 28642325
21 60404681
22 127082128
23 265712673
24 554608226
25 1151374963
26 2385950536
27 4924685252
28 10145267212
29 20831428273
30 42708248451

[1,2,7,19,54,134,354,838,2057,4794,11232,25412,
 58075,128670,286152,625829,1365653,2941088,
 6331146,13474533,28642325,60404681,127082128,
 265712673,554608226,1151374963,2385950536,
 4924685252,10145267212,20831428273,42708248451]

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Last modified January 18 04:47 EST 2019. Contains 319269 sequences. (Running on oeis4.)